I have told her all those things. I think one of her biggest hang ups is winter driving and the closest service center for me is Eden Prairie MN. I explained to her about the traction control being remarkable and that there are people in other countries who have crazy winters and only have RWD Tesla vehicles.
LOL!!! If she's thinking she'll get better traction in a minivan than
anything else, I'll take some videos next winter of all the minivans in my neighborhood that can't make it home in the winter. And I'll bet your winters are worse than mine.
In terms of driving (performance, maneuverability, visibility, etc.) , a minivan will definitely be a step down from an Equinox (disclaimer: I've never driven an Equinox, but I have driven lots of different sizes of other SUVs and several minivans). A Model 3 will be a
huge step up. A PHEV Pacifica... I dunno, haven't driven one. But yeah, with small kids, minivans have much more utility than a sedan (and possibly an SUV, depending on which SUV you get, and what kinds of activities your family does). But again... if it's
your car, not the family car, maybe those shouldn't be the priorities. And if you're in the habit of you always getting the hand-me-down of the old family car, maybe you should have a talk with your wife and discuss the priorities and practicalities of doing this. Getting the "right" car for the purpose, and taking turns getting new cars might be a better overall solution.